Are you able to open a file directly from the web client modify and save or must you download locally, modify the file and save then re upload to the Wing FTP server, I have tried a straight open and save but it does not retain the changes, also will there be a possibility of being able to drag and drop from the web client in the future, thanks

You can modify the text file by online text editor, you must enable "File Write" permission for your home directory.And drag and drop feature is very hard to realize, because Web Client is based on web browser, it is not a GUI application.